TiO2/rGO composite material having high-efficiency electrocatalytic oxygen reduction performance
A composite material and electrocatalytic technology, applied in the field of electrocatalytic materials, can solve problems such as not having electrocatalytic oxygen reduction performance
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Examples
Embodiment 1
[0040] In a 50mL small beaker, while stirring with a magnetic stirrer, add 10.00mL of absolute ethanol, 3.00mL of ethylene glycol stock solution (pure ethylene glycol), slowly add 10.00mL of tetrabutyl titanate, and stir for 5 min to form Light yellow transparent liquid, add 0.867g of ammonium fluoride, 1.406g of urea, 2mL of graphene oxide (1g / 100mL), stir until the solution is clear (about 5 min), and finally add 16.00mL of 6mol / L hydrochloric acid dropwise, stir well Finally, transfer the reaction solution into a 100mL autoclave, heat to 200°C, take it out after 10 hours at constant temperature, wash the product three times with absolute ethanol, then wash three times with twice distilled water, and put it in a vacuum distillation device at 50°C Distill under reduced pressure for 20 minutes to obtain a black powdery solid, which is TiO with high-efficiency electrocatalytic oxygen reduction performance. 2 / rGO composite material——TiO 2 / (1.5%) rGO.
[0041] Characterized...
Embodiment 2
[0043] In a 50mL small beaker, while stirring with a magnetic stirrer, add 10.00mL of absolute ethanol and 3.00mL of ethylene glycol stock solution, slowly add 10.00mL of tetrabutyl titanate as the raw material, stir for 5min, a light yellow transparent liquid is formed, add fluoride Ammonia 0.867g, urea 1.406g, graphene oxide 4mL (1g / 100mL), stir until the solution is clear (about 5 min), and finally add 6mol / L hydrochloric acid 16.00mL dropwise, after fully stirring, transfer the reaction solution to 100 In a 1 mL high-pressure reactor, heat to 200 ° C, take it out after 10 hours at constant temperature, wash the product three times with absolute ethanol, and then wash three times with double distilled water, put it in a vacuum distillation device for 20 minutes under reduced pressure at 50 ° C, A black powdery solid is obtained, which is TiO with high-efficiency electrocatalytic oxygen reduction performance. 2 / rGO composite material——TiO 2 / (3.0%) rGO.
[0044] Charact...
Embodiment 3
[0046] In a 50mL small beaker, while stirring with a magnetic stirrer, add 10.00mL of absolute ethanol and 3.00mL of ethylene glycol stock solution, slowly add 10.00mL of tetrabutyl titanate as the raw material, stir for 5min, a light yellow transparent liquid is formed, add fluoride Ammonia 0.867g, urea 1.406g, graphene oxide 6mL (1g / 100mL), fully stir the solution until it becomes clear (about 5 min), and finally add 6mol / L hydrochloric acid 16.00mL dropwise, after fully stirring, transfer the reaction solution into 100ml In a high-pressure reaction kettle, heated to 200°C, took it out after constant temperature for 10 hours, washed the product three times with absolute ethanol, then washed three times with double distilled water, put it in a vacuum distillation device for 20 minutes under reduced pressure at 50°C, and obtained Black powdery solid, which is TiO with high-efficiency electrocatalytic oxygen reduction performance 2 / rGO composite material——TiO 2 / (4.5%) rGO....
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Abstract
Description
Claims
Application Information
- IPC
- B01J21/18; H01M4/90
- CPC
- Y02E60/50
- Inventors
- 于洁玫; 黄太仲